FC: completed commenting the first draft of the final version of the code to be submitted to ANS.
FC: completed commenting the first draft of the final version of the code to be submitted to ANS.

git-svn-id: 53ca99f9fc544348cf6f8fe95af353398d7b6651@991 8991a6ac-f11c-0410-9488-e9edc039dec7

luca-heltai/ans-ifem,luca-heltai/ans-ifem